There are a lot of tiny little UI “tweak” plugins in the list, but there are also some incredibly powerful and useful ones as well. As it stands today it’s still difficult to find the best in the list, but I think that will improve as time goes on and SageTV updates their plugin manager.
My favorites include:
1. Web Interface (main and mobile)
2. BMT – sounds like a sandwich but it’s really a very powerful and configurable metadata and coverart manager. It’s simply awesome
3. PlayOn plugins bringing in Netflix, Hulu, Amazon and more – and you can make it automtically show up in your TV recordings or movies list if it’s in your Hulu/Netflix queue.
There are many, many more as you can see from the main list.